<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
    <title>JSP - Hello World</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            margin: 0;
            padding: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
        }
        h1 {
            color: #333;
            margin-bottom: 20px;
        }
        a {
            text-decoration: none;
            color: #007BFF;
            font-size: 18px;
            padding: 10px 20px;
            border: 1px solid #007BFF;
            border-radius: 4px;
            transition: background-color 0.3s, color 0.3s;
        }
        a:hover {
            background-color: #007BFF;
            color: white;
        }
        .container {
            max-width: 600px;
            text-align: center;
        }
    </style>
</head>
<body>
<div class="container">
    <h1><%= "欢迎进入系统" %></h1>
    <br/>
    <a href="getCourse">系统进入</a>
</div>
</body>
</html>
